Complete IDE, very well integrated with PyQT development, but usable for any kind of project. Supports projects, debugging, auto-complete, syntax coloring, etc. It is extensible via plug-in system. It has interfaces to Subversion and Mercurial. GPL3

A general purpose developer's text editor written in Python/wxPython. It supports python syntax highlighting, auto-ident, auto-completion, classbrowser, and can run scripts from inside the editor. Extensible with plugins written in python.

Komodo is an award winning Python IDE from ActiveState. Fully-integrated Python support (including Python 2.x and Python 3) featuring code intelligence with autocomplete and calltips, Python debugger (includes remote debugging), interactive shell, remote file support, macros, templating, emacs command support and it all comes with great help documentation. There is a open-source version called Komodo Edit (Source), as part of the Open Komodo project started November 2007.

Highly active IDE project based on PyQT. It offers pretty much everything: syntax highlighting, auto-indentation, code browser, debugging with breakpoints, project browser, code completion, refactoring and tooltips (with rope library installed; for a local installation on Linux, just add unpacked folder to the Pythonpath with the integrated path manager in the tools menu), and many more. Especially suitable for scientific programming as it offers an interface similar to Matlab, with integrated consoles, variable browsing and manipulation. For Windows it is conveniently integrated in the Python(x,y) distribution.

IDE with autocompletion, syntax highlighting, templates, project support, options for running code, integrated bash shell and support for group projects over the lan or internet. Also supports ruby, C, C++, Java, Perl, Web development and other languages. Easily extendable in python by writing a plugin. Uses PyQt, lincensed under the GPL.

Visual Tkinter, the Python language and visual graphic interface designed for program developers. Write programs were tailored to the needs of visual GUI top-level support. Since December 2008 we project growth continues Visual Tkinter saves time and mistakes. Fast fault detection system and directs you to the appropriate line. Scintilla class library is used for coloring paper.